Power transmission device, method performed by the same, and program

The power transmission device uses an antenna and detection mechanism to send confirmation signals during power suspension, ensuring timely detection of receiving device removal and efficient power transfer reinitiation.

JP2024170546AActive Publication Date: 2024-12-10CANON KK
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Patent Information

Application Number
JP2024152995
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-09-05
Publication Date
2024-12-10
Estimated Expiration
2039-04-24

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Abstract

To detect removal of a power reception device even during a period of stopping power transmission in a power transmission device that has received an EPT packet designating a period of stopping power transmission.SOLUTION: A power transmission device 100 controls a power transmission coil 105 to transmit a check signal for checking presence of a power reception device 200 during a period in which power transmission is stopped based on reception of an EPT packet including information on a period in which power transmission is stopped from the power reception device 200 by a communication unit 104. The power transmission device detects at least one of voltage and current applied to the power transmission coil 105 when the check signal is transmitted by a detection unit 108, and determines whether or not there is an RX200 that transmits the EPT packet based on detection results.SELECTED DRAWING: Figure 6
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Citation Information

Patent Citations

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